铁炉渣对磷的吸附与解吸特征的研究  

Experiment of adsorption and desorption of phosphorus by slag

作　　者：林芳[1] 王纯[1,2] 王维奇[1,2] 赵娜[1,2] 蓝妮[1] 

机构地区：[1]福建师范大学地理科学学院,福建福州350007 [2]福建师范大学亚热带湿地研究中心,福建福州350007

出　　处：《实验室科学》2014年第4期59-61,66,共4页Laboratory Science

基　　金：国家自然科学基金资助项目(项目编号:31000209);福建师范大学优秀青年骨干教师培养基金(项目编号:fjsdky2012007)

摘　　要：研究采用室内分析法探讨了炉渣与水稻土对磷去除的影响。研究结果表明,基质对磷的吸附量表现为炉渣>土壤和炉渣混合>土壤,等温吸附特征符合Langmuir拟合模型;土壤和炉渣对磷的吸附量都是随着pH的升高而增加;随着温度的升高,炉渣和土壤对磷的吸附量均有增加;基质对磷的解吸量随着吸附量的增加而增加,并且炉渣作为基质时的解吸率较低,为3.5%,明显低于土壤的平均解吸率26%。炉渣可作为去除磷的有效的吸附剂。The phosphorus removal by slag and paddy fields soil was determined by laboratory analysis method. The results showed： The adsorption appeared slag〉soil and slag〉soil and the isothermality adsorption was followed the Langmuir mode. Adsorption by soil and slag were increased as the enhance- ment of pH. Adsorption by soil and slag were increased with the enhancement of temperature. Desorption by soil and slag were increased with the enhancement of adsorption, and slag had lower desorption rate about 3. 5%, which was significantly lower than that of soil about 26%. Slag may take as a effective adsorbent for phosphorus removal.

关 键 词：铁炉渣 磷 吸附 解吸 

分 类 号：X16[环境科学与工程—环境科学] S513[农业科学—作物学]